chandler



4 Sheets-Sheet l.

0. A. CHANDLER.

BAG MAGHINE.

NO. 267,774. Patented Nov. 21,-1882'.

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(No Model.) 4 Sheets-Sheet 2.

C. A. CHANDLER.

BAG MACHINE.

No.267,774. Patented Nov.21,1882@ d Wife S,

(No Model.) K 4 Sheets-Sheet 3 q G. A. CHANDLER.

BAG MACHINE. v No. 267,774. Patented Nov. 21, 1882.

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y 7 BAG MACHINE. v No. 267,774. Patented Nov. 21, 11882.

N. PETERS Plmwumu m her. Wnhinglon. |:.c.

UNITED STATES PATENT OFFICE GEARENGE A. CHANDLER, OF EAST BRIDGEWATER, MASSACHUSETTS,"

ASSIGNOR TO THE EASTERN PAPER BAG COMPANY, OF HARTFORD,

(JON N EGTIG UT.

BAG-MACH INE.

SPECIFICATION forming part of Letters Patent No. 267,774, dated November 21, 1882.

' Application filed January 31, 1881.

To all whom it may concern:

Be it known that I, CLARENCE A. CHAND- LER, of East Bridgewater, county of Plymouth and State of Massachusetts, have invented a new and useful Improvement in Machines for Making Paper Bags, of which the following description, in connection with the accompanying drawings, is a specification.

This invention relates to machines for the man ufacture ot'satchel-bottom paper bags, and is an improvement on United States Reissned Letters Patent No. 9,202, dated May 18, 1880, and granted to M. E. Knight.

The object of my invention is to simplify the mechanical construction of the said Knight machine, so that it may be run at greater speed and with less power, to improve and simplify the cross-folding apparatus, and to improve and simplify that kind of machine which, by changing but few of its parts and adjusting others, is adapted to make perfectly several different sizes of paper bags.

The bag-blank feeding and folding rollers and blades are mounted in an independent head made adjustable longitudinally with relation to the tube-feeding, tube-cutting, and diamond-fold-laying mechanisms, to thus provide for the production on the same machine of bags of different sizes, each bag of different width necessitating adjustment of the said rollers and blades to place the rollers in posi' tion to receive between them the leading end of the diamondfold, which latter varies in length for each different width of bag or tube. Some of the driving-gearing to be referred to is supported on a lever having a curved slot, so that as the head referred to is moved in one or the other direction the said bar and its gearing will always operate the mechanism carried by the said head. The rear end of the finger or nose which assists in forming the diamond fold is extended back between the rollers which engage the diamond fold and feed forward the bag-blank. This finger acts to prevent the leading end of the diamond fold from rising or curling up before it is struck by the first folding-blade, the said finger or nose constituting a portion of the diamond-fold-lay- (No model.)

ing mechanism herein shown and acting to hold the diamond fold open while the leading end thereof is being placed between or into the bight of the delivering or folding rollers, to be subsequently cross-foldedat two places parallel to each other.

Figure 1 represents in side elevation the forward end of a paper-bag-making machine c011- taining my improvements. Fig. 2 is a top view of Fig.1. Fig. 3 is a central vertical longitudinal section of the machine in the position indicated in Fig. 2. Fig. 4 is a detail representing the train of gearing which. operates the bag-blank feeding and folding rollers and parts of the levers and connections for moving the follower and second cross-folding blade. Fig. 5 is a detail showing the cams for operating the tucking blade and first'cross-folding blade. Fig. 6 is a detail showing a portion of the tucking-blade and its detachable end journal. Fig.7 represents the diamond fold dotted transversely to show the lines of the first and second cross-folds to be made by the first and second folding-blades, and the rollers between which the said blades tuck the paper at such lines, the said figure also showing in crossed lines the paste applied to the diamond fold to enable it to be pasted together securely; Fig. 8, a detail of the diamond-fold pasterremoved from the rollerj; Fig. 9, a detail of the metal band fitted to the grooved central portion of the roller j Fig. 10,a cross-section of the roller 7c, midway between one of its ends and the cen- The main shaft aof the machine, having thereon a belt-pulley, a, has secured. to it the lower member of the tube-cutter, it being con1- posed, as herein shown, of a partial cylinder, a having preferably adjustably connected with it a cutting-blade, a having a series of bevel-pointed, sharpened, or wedge-pointed teeth, (see Fig. 2,) which at the proper time cooperate with a cutter, a having a straight .pieces, B B.

edge, preferably adjustably connected with arms'w of the shaft a. The shaft (0 has fixedupon it a pinion, a which is engaged and driven by means of a pinion, a, on the shaft a, so that the two rotary cutters are caused to operate one with theother at the proper time to sever the pasted paper tube into lengths for bags of the desired size, the cuttinginembers moving at the same speed. The shaft 0, has fixed upon it four cams, b 0 (Z 6. The cam I) strikes a roller, 1), of a rocking lever, b connected by link I) with an arm, b on the rocker-shaft b the said rocker-shaft having upon it an arm, b connected by link b with the follower b substantially as in the said Beissued Patent No. 9,202, the said follower being thereby reciprocated in suitable guideways in the former B of usual construction. I

The forward end of the follower, extended between the feeding-rollers f g, provided at their centers with annular grooves for that purpose, is provided with a finger-cover, I)", (see Fig 3,) shown as a yielding fork, the normal condition of which is expanded as in that figure, the said cover, when the follower has been moved fully forward, meeting or covering the forward end of the finger or nose a, herein shown as stationary, it being a device substantiallysuch as described in Beissued Patent No. 9,202, dated May 18,1880, to which reference may be had, the said finger being adapted to enter the leading end of'the tube and act upon one ply thereof and lay it back on the body of the tube in the formation of the usual diamond fold, which is the first step in the formation of a satchel-bottom paper bag. The fin ger-cover b, at the end of the follower, covers the end of the finger or nose just as the leading end of the tube is being fed upon the said finger or nose by the tube-feedin g rollers f g.

The former B may be changed as to width, according to the size of the tube which it is desired to produce, by adding to it the side A spring, B located below the former B, presses gently upon and smooths the paper tube where its pasted edges are overlapped.

in connection with the former B, I employ folding-guides h h, (shown in Fig. 11,) to lap the web of paper about the former B. The paper, with one edge pasted, will be supplied to the former B from a suitable roll in any usual manner.

The cam c strikes a roll, 0, on a lever, 0 (see Fig. 4,) connected by an adjustable link, 0 with an arm, a, ofa rock-shaft, c", the said arms 0 having secured to them the second cross-folding blade, 0 (See Fig. 3.)

The cam 01 strikes a roll, d, on a pivoted lever, d having at its lower end alink, (1 the end of which is made adjustable by the screw (1 in the slotted arm d connected with the rock-shaft d, the latter having at each end just within the frame-work long arms al connected by links (1 with the journals d (see the diamond-fold.

Figs. 1,2, 3) of the tucking-blade d. The tucking-blade d has at each end a detachable journal, d which slides in the guide-slots 2 of the frame-work A, the said blade having a movement toward and from the paper tube. The blade is secured to the journals by screws. The tucking-blade (Z actuated by the arms d, as above described, is thrown down upon the upper ply of the paper tube substantially as in the Knight patent referred to, and tucks the upper ply-under the forward end of the finger or nosejust after the same has entered the leading end of the paper tube in the formation of the diamond fold, after which the tucking-blade is moved backward from below the said finger or nose and is lifted from contact with the tube. The diamond fold laid by the passage of the tucking-blade under the finger or nose varies in length, according to the width of the paper tube from which the bag is made, and consequently the tucking-blade to carry the bag forward the proper distance under the said finger must have greater or less extent of throw, and the leading end of that portion of the diamond fold in front of the edge of the said tucking-blade, when the latter stops in its forward position, will project more or less, according to the width of the bag, and it is to enable the rollers j to properly receive the leading end of the diamond folds difiering in length that the said rollers with the blades and head D or the parts for cross-foldin g the diamond-folded portion of the bag-blank are made adjustable toward and from the cutting and diamond foldlaying mechanism. By adjusting the screw 01 the throw of the tucking-blade may be made more or less, according as it is desired to make a long or short bag.

The cam e strikes a roll, a, of a lever, 0 ,0011- nected by an adjustable link, 0 with an arm of the rock-shaft 6, upon other arms of which is secured the first folding-blade 6 said blade being provided near its center with two slots, 3 4, to permit the acting edge of the blade to descend below the side arms, 5 6, of the nose n, the said arms at their rear ends being connected with a cross-bar, c. The arms 5 6 of the nose extend back between the rollsj 7c, the latter engaging the leading end of the diamond fold laid in the bag-blank, at that time severed from the tube, carryingor feeding said bag-blank forward, while the finger or nose n and tucking-blade operate to lay back or form (Seen at Fig. 7.) As soon as the diamond-folded portion of the blank has been fed sufficiently far forward between the rollsj k to have made in it the first of the crossfolds, the first folding-blade is made to descend and strike the diamond fold on the line :19, (see tween them to place the rear end of the diamond fold opposite the bi ght of the rollers km, the secondfolding-blade, c ,'is moved forward quickly to strike the rear corner of the diamond fold on line .70 Fig. 7, tucking the same in between the peripheries of the rolls k m, which latter,

. as the second folding-blade retires, carry the bag-blank between them, completing the second cross-fold of the satchel-bottom, and also makea blind fold in what is to be the body of the bag.

The circumference of the roller j is just equal to the length of the bag-blank cut from the tube of paper; but the periphery of the said roller, except near its ends, is very much cut away, as at 51, Fig. 10, or shouldered to permit the leading end of the diamond fold to get started between the rollersj k, where it will be caught by the full parts of the rollerj, (shown in Figs. 2 and 6,) and, pinching it on the roller 70, feed the bag-blank forward positively. Cutting away the roller j, as shown and described, to form a clear space to permit the leading end of the diamond fold to be entered freely under it, keeps the diamond fold in better shape than would be the case if the diamond fold was grasped just at its extreme point or end. The roller j is cut away at or near its center to receive the pasters 10 12 13, (shown in detail Fig. 8,) which apply to the diamond fold the rows 45 and spot 46 of paste, (represented in crossed lines, Fig. 7,) the acting faces of the said pasters being flush with the periphery of the said roll j. The roller 1 is provided with a central annular groove to avoid pressing upon the paper in the line of thepaste applied to the diamond fold. Otherwise the paste wonld be spread so far as to fasten together the paper forming the sides and bottom of the bag, which would prevent the bag from opening properly for use. A plate of metal, I, is iitted into this annular groove in roller 1, and is extended partially about the top of'the said roller, so as to maintain an even surface at the top of the roller Z for the easy passage of the leading end of the diamond fold over the said roll 1 prior to the blank receiving its first cross-fold. The plate I is slotted at its ends, (see detail, Fig. 9,) to permit the free passage of the lines of paste on the diamond fold then exposed on the upper surfaces of the rear end of the said diamond fold.

Below the rollers l, and connected with the frame-work, is a shield, p, to direct the once cross-folded end of the bag-blank intoproper position with relation to the second foldingblade 0 and rollers k m to be folded on the line as.

The spiral spring q, connected with the arms of the rock-shafts which carry the first and second folding-blades, acts, when permitted by the cams which operate the said blades, to throw the blades in their rearmost positions.

The pasters 1O 12 13 are provided with paste by means of a roller, 14, (see Fig. 3,) in a yoke,

15, the periphery of the saidroller running in contact with a roller, 16, in the paste-trough 17, the roller 14 taking up the proper amount of paste and applying it to the said pasters.

The shafta at one end has connected with on the shaft 25 of the uppermost bag-feeding roller,f. The shaft of the roller fis held in adjustable bearings 26 held down by spring 27. The gear 23 on the shaft of the lowermost tube feeding rollers engages an idle-gear, 28, and through a series of idle-gears, 29 30, drives a pinion, 31, on the shaft 32 ofand rotates the roller It. The idle-gears 28 2930 run on studs secured upon an adjustable lever, 38, having at one end a curved slot, 39, to receive a stud, 40, connected with the adj ustableheadD which carries the folding mechanism. The shaft 32 at its opposite end has a pinion, 33, which engages with a pinion, 31, on the shaft of the roller j. The pinion 33 on the shaft of the roller 70 engages a pinion, 36, on the shaft of roller Z, and also engages a pinion, 37, on the shaft of roller m, the said pinion 33 on the shaft of roller k rotating the rollers l on in the same direction, and in the direction of the rotation of the said roller is, the three rollers cooperating with the two folding'blades c e to form the two cross-folds.

This machine, by the change of some of its parts and adjustment of others, may be em-j ployed to make bags of different sizes.

7 To alter the machine to make a bag of a dif ferent size the former will be altered in width to correspond with the width of tube desired; and if the bag-blank is also to be changed in length, as it is for any considerable change in size, a roller, j, will be employed the circumference of which is just equal to the length of the bag to be produced. The pinion 18 on the shaft (1 will be changed for one of the proper diameter, and the idle-gear 19 will be adjusted between the pinion l8 and the gear 21 to move the'tube-feedin g rollers more or less, and feed more or less length of tube beyond the tubecutters between one and their next cutting-operation, according to the length of the diamondfolded part of the bag-blank, which varies according to the width of the bag-blank and the size of the bag.

The rollers j 70 Z m are mounted in an independent head, D, adj ustabl y connected by bolts 42 (see Fig. 1) with the frame-work A of the machine, the said head being adjustable toward and from the tube-cuttin g and tube-feedin g mechanisms and diamond-fold mechanism, according to the length of the bagblank. The movement of the head D and stud 40 causes the latter, placed in the slot 39, to raise and lower the lever 38 and train of idle-gear thereon, which always remain correctly in operative mesh with the gears with which they are I I have herein shown and describedthree in engagement, notwithstanding the different positions occupied by the head D. The adjustable connecting-rods e and 0 will belengthened and shortened as the head D is adjusted on the frame-work, and the throw-points of the cams c d 6 will be changed by adjusting the said cams about the shaft a, in order to time the movement of the devices actuated by them according to the size of the bagitis desired to produce.

The directing-plate F receives against it the folded bag and diverts it upon the belt 0, which lorms one of the system of belts shown in United States Patent to Daniel Appel, No. 231,642, dated August 31, 1880, the belt 0 co operating with the belt 0 above it. This directing-plate is shown in my application, No. 43,092, filed October 3,188l, and is not therefore herein claimed broadly.

Suitable springs connected with the vibrating levers hold the rolls carried by them against their actuating-cams.

The paper tube in advance of the tube-cuting mechanism is supported on a plate, 50, against the action of the tucking-blade d. Fig. 3 shows the finger or nose at in section with one of its arms 6 extended back over the rolls k l and with the tucking-blade under the said finger almost to its full stroke.

The means herein described for forming the diamond fold are substantially the same as in the Knight patent,'and in this application, as iii that patent, there is employed a pair of rollers to draw the bag-blank under the finger or nose, and at the rear of the said rollers is a third roller, which, co-operating with the lower bag-blank-fecding roller and a folding-blade, enables the cross-told to be made at the leading end of the diamond fold. In this application, however, the parts are simplified. The upper roller, which acts on the diamond-folded bag-blank, is also made to apply paste to the diamond fold.

folding-rollers and two folding-blades; but I have to state that I do not claim thesame broad ly, but only when combined with other devices, ashereinafter claimed.

I have herein shown a folding-blade and two rolls to form the second cross-fold in the diamond fold, and at the rear of the said rollers a shield to arrest and divert the bag in the opposite direction upon a traveling belt to have the blind fold in the bag opened by a second belt; but this I do not herein claim, as it will form the subject of another application for United States patent to be made by me.

.I do not broadly claim adjusting the rollers in a paper-bag machine toward and from the tube-severing mechanism merely to place the rollers at the proper distance therefrom to enable them to catch the endiof the paper and hold it as the paper is being cutoff for the bag.

I claim- In a machine for making satchel-bottom paper bags, the combination of tube-forming, tube-feeding, tube-cutting, and diamond-foldlaying mechanisms, having bearings in a fixed frame, with another frame adjustable backward and forward relatively on said fixed frame, and fixed thereto during the operation of the machine, and the bottom folding and pasting mechanism borne by said adjustable frame and adapted to cross fold the diamond fold in two places parallel each to the other, whereby the machine may be adjusted to make bags of different sizes from tubes or blanks of different width, substantially as described.

- In testimony whereofI have signed my name to this specification in the presence of two subscribing witnesses.

OLARENGE A. CHANDLER.

' Witnesses:

G. W. GREGORY, ARTHUR REYNoLns. 

